A tan crew-neck t-shirt and black chinos are absolute menswear staples if you're putting together a casual wardrobe that matches up to the highest sartorial standards. Serve a little mix-and-match magic by wearing beige suede sandals. This combo isn't a hard one to create and it's summer-appropriate, which is most important when it's boiling hot outside. Now that's a look that will surely make you stand out among other 20-year-old guys.